131332131020 has 48 divisors (see below), whose sum is σ = 285869606400. Its totient is φ = 50647717824.

The previous prime is 131332131001. The next prime is 131332131023. The reversal of 131332131020 is 20131233131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131332130983 and 131332131001.

It is not an unprimeable number, because it can be changed into a prime (131332131023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979670 + ... + 1105629.

It is an arithmetic number, because the mean of its divisors is an integer number (5955616800).

Almost surely, 2^131332131020 is an apocalyptic number.

131332131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131332131020 is an abundant number, since it is smaller than the sum of its proper divisors (154537475380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131332131020 is a wasteful number, since it uses less digits than its factorization.

131332131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085422 (or 2085420 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131332131020 its reverse (20131233131), we get a palindrome (151463364151).

The spelling of 131332131020 in words is "one hundred thirty-one billion, three hundred thirty-two million, one hundred thirty-one thousand, twenty".